Gaya APA
BARBOUR, M, G, [.
(1999).
TERRESTRIAL plant ecologi
(
3rd ed.)
.
California:
Addison Wesley Longman.
Gaya MLA
BARBOUR, Michael, G., [ed.].
"TERRESTRIAL plant ecologi".
3rd ed.
California:
Addison Wesley Longman,
1999.
Buku.